Per the NRA Shooting Sports website, Canadian shooter George Farquharson (the “F” in F-Class) promoted this new discipline in the 1990s. Farquharson’s idea to use scopes and rests was intended to attract long-range shooting enthusiasts who are more familiar with scopes, rests and sandbags than the iron sights, slings and shooting jackets of traditional high power competition. NRA formally recognized the new sport in its 2005 NRA High Power Rifle rules. Former NRA High Power Rifle Manager Janet Raab said, "F-Class is the fastest-growing type of high power competition because it offers the challenge of long-range shooting in a format that is fun and easy to learn."
For more information on F-Class Visit the NRA Shooting Sports USA website.